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Gunpowder is a low explosive: it does not detonate, but rather deflagrates (burns quickly). This is an advantage in a propellant device, where one does not desire a shock that would shatter the gun and potentially harm the operator; however, it is a drawback when an explosion is desired.
Because of their similar use, both the original black powder formulation and the smokeless propellant which replaced it are commonly described as gunpowder. The combustion products of smokeless powder are mainly gaseous, compared to around 55% solid products (mostly potassium carbonate , potassium sulfate , and potassium sulfide ) for black ...
In 1988 Ford Motor Company sold 80% of Ford-New Holland Inc. to Fiat, and in 1991 Fiat acquired the remaining 20%, with the agreement to stop using the Ford brand by 2000. By 1999, Fiat had discontinued the use of both its own and the Ford name, and united them both under the New Holland brand.
The first powders were called "MR" for military rifle powder. In the 1920s these powders were improved and the name was changed to IMR. Various different powder are produced and are given numbers to distinguish them. The different types of powder typically have different burning rates.
Although all firearm propellants are generally called powder, [1] the term gunpowder originally described mixtures of charcoal and sulfur with potassium nitrate as an oxidizing agent. [ 2 ] : 133, 137 By the 20th century these early propellants were largely replaced by smokeless powder of nitrocellulose or similarly nitrated organic compounds .
Gunpowder, an explosive mixture of sulfur, charcoal and potassium nitrate (also known as saltpeter), was the original propellant employed in firearms and fireworks.It was used from about the 10th or 11th century onward, but it had disadvantages, including the large amount of smoke it produced.
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